Vapor electric apparatus.



G. 0. BASTIAN.

VAPOR ELECTRIC APPARATUS.

APPLIGATION FILED DEC. 6, 191a.

Patented Dec. 22, 1914,

enemas ORME nasrmit-ior tonnomnnennivn, nssrenon 'ro COO-PER HEWITTELECTRIC COMPANY, sor nonoxnn, new Jnnsny n conronarron or new JERSEY.

- Specification oi! Iietters Patent.

rvnron ELECTRIC nrrana'rus.

Patented pm. 22, mm.

Original application riled December a, 1905, Serial No. 292,480.Divided. and this application filed December 5, 1913. SerialNth-804,317.

To all whom it may concern Be it known that LEEARLES ORME' Ba s- TIAN, asubject of the Kinggof Great Britaim, and resident of-75. ;Brendesburyroad, London, England, have inventedcertain new and useful Improvements,in Vapor Electric Apparatus, of which the following is aspecification.

This invention relates to vapor electric is, according to presentcustom, calleda. burner, and this irrespectiveof whether. the apparatusbeused for giving light or for;

turing electriclcircuits.

It has been proposed to start mercury vapor apparatus by means of ashunt electro-magnet,'andto leave the latter in circuit other purp0ses,-'such as rectifying or rupduring subsequentfloperation, ibiitlj. findit desirable to range-inane; pressure within the arc to automaticallycut puftof "circuit the shunt electrosmagnet during such time as thelamp 'isinOperati n and toresto'r'e the connection-whenthe-current .isswitched I oif and the pressure.. 'subsides through cooling, and Imayconvenientlyjefi'ect this by" causing the pressure to act on abody'ofmercury behin'd the" positiveelectrode-a as aforesaid for -example by]separating the electro-magnetflcircuit connection from the positiveelectrode.

My invention panying drawing .which shows a burner adapted to'car ry-outthe purposesof my invention. r.

In the drawing .an enlargement b is shown at -.th 'lectrode b and alsoan enlargementjfe' \e positive electrqelei'c while the bulb '01;receiving that :pant' of the llustrated the accom-l mercury which isdisplaced from the arcpathin the tube a) is located outside the path ofthe arc stream between the electrodes 0 and b; and furthermore, betweensaid positive electrode 0 and said bulb d I may provide a subsidiarypositive electrode y which is in circuit with the electro-magnet whichis employed to start the lamp by tilting or said subsidiary positiveelectrode 7' may be connected in any other circuit (such as a resistancecircuit) which it may be desired to cut out after the burner has trode aand will. ultimately be removed back ,clear'of the surface of thesubsidiary electrode 3' whereby 'circuitth-rough the latter willautomatically be broken. 4 'In the following claim the terms burner andmercury are (for thesake of brevity) respectively used to denote andinclude any suitable device and-any suitable electrode ma terial ashereinbefore defined or explained.

'z I claim as my invention':' y

In a burner for electriclapparatus, a mom tainer, main electrodes ofmercury therein, a subsidiary contact therein located outside the'pathbetween the main electrodes, but within the limits of the movement ofthe mercury in normal operation of the burner, whereby the saidsubsidiary contact is cut out of the circuit.

Signed at London in the county of London and England this 18th day ofNovember C. ORME BASTIAN. Witnesses:

- TRACY LAY,

0. J. Women.

